Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9734863 | Adjustable dual tensioning tone arm device and assembly | Andrew F. Bach | 2017-08-15 |
| D657777 | Audio speaker | Nils Karsten, John Hourihane | 2012-04-17 |
| D606042 | Curved grill speaker | — | 2009-12-15 |